FNB is useless at resolving issues!!!

I have two reference numbers where I am awaiting feedback from FNB on the same issue. ReferenceRq***. I sent a complaint on 1st October regarding the deduction on my FNB credit card. The agent rep**** and thereafter no response..I called yesterday, the agent was so helpful but needed to escalate the same issue I reported in October. I am honestly just frustrated with FNB not doing what they need to. Please stick to a date for debit and interest charges and stop changing the dates. I have been struggling with the same issue since September!! Its disgusting service.